Window guide



March 25, 1930..

R. T. GRIFFITHS WINDOW GUIDE Original Filed July 28, 1926 In ueni'for;

Bichand If Gr; 7' mg Patented Mar. 25, 1930 I UNITED STATES PATENT OFFICE RICHARD r. cannons, or AISBON, 01.110, sss non so was MILLER RUBBER oom- PANY, or AKRON, orrro, A CORPORATION or 0310 wmnow ohms o ig na applica sl d u y 28, .1 r a No- 124385- Divided. one th s application fil d b uary 8,

1.927- ser el Ho- .6. 357,

y pre en inv t on relates to improve.- ments in flexible wi d w guides f r the liding windows of motor vehicle bodies and the like of the type having a body of rubber and o surfacing o abric such as fe t.

The invention aims to provide a guide, which m y b ma fa u ed in flat form, thereby facilitating its manufacture, simplifying its hand ing and hipm nt, and e Ebling i s o e ready appli at on t t e w now. 1 With these and other objects in view the invention includes the novel article hereinafter described, and defined by theappended claims, i i

n rder that t i ent n may be more readily understood reference is made to the nccompanying'dr wing in which Figure 1 is a perspe tive view of a dierammntic nature sho ing one mann r in which! the rubber strip may be produced wi h e fabric covering.

Fig, 2 is a transverse vertical sect on through a mold or haping and vuleani lng the article. Fig. 3 is a perspective view of the completed article, partly broken aw y.

' Fig. 4 is a perspective view of the article, partly brok n aw y, and folded in positi n for use.

Fig. 5 is asirnilar view of a modification.

In proceeding according to my method I pr vid a. s rip or slab ofunvulcanized rub ber compound 1 with an envelope or covering 2 of felt or other suitabl fabric, This may conveniently, expeditiously, and egos nomically be produced by extruding o trip 1' slabfot rubber from an extruding machine 3, shown conventionally in Fig, 1 having a die opening which will produce a strip or slab of rubber .1 of the desi d width a d hi kness.

A strip or web of fabric 2 of sufficient width t enable it to be wrapped around or encompass the rubber strip, is led from a Suitable source, not shown, over a guide roller 4 at which point the rubber strip issuing from the extrudlng machine is superposed on the fabric centrally of the Width thereof. From the guide roller the assembled strips pass to fold:

vinto suitable lengths an ing moons whi h may e in the shap of .rolle 5 journel d to rotate about vertical a and roll rs 6 jour al d to rot-ate ab ut a horizontal parallel axes. The rol er 5 and 6 fold the margins of the fab i b ut the rubber strip or body and p e it agains the strip with snflicient force to cause it to dhere thereto- The covered strip thus roduoed may be cu 5 is t en ady for Shaping and. vncnnizing Th i accomplished by providing a mold compri i g lower a d upper ctions 7 and 8 hav ng the custo na y dowel pins a d openings. The lowe mo d c ion has th main or ion of its bo tom formed as a planesur ace, being curved upward at the sides for a purpose hereinafter set forth- The u per secti n hes'its molding face provide W t s a r of parallel approximntely edge hap ib "which, when the mold, is closed, pre or f rce the u p no surfa e down to orm two parallel channels lthe covered strip, the rubber being forced laterally or disp aced. by the pressure of the ribs 8., whereby lines of fo de form d n the strip. Preferably the ribs' '8 are made of such height that practically all the rubber is displa d at he fol lines and the uppe and lower layer of h fabric are pr s together at the bottom of the channels and united by the adherent rubber, so that flexible fabric hinges are provide Th side marg ns of the male and female portions o the mold sections are so curved that after the mold has been closed and subjected to vulcanizing heat the article will have the shape sho n in Fig. 3, providing an intermediate base po ion and two i e wings flexibly .connected thereto and provided with curved outer edges or margins. Such strip n a dition to being very rapidly and economically manufactured, may be shipped to the trade without loss of space as they may be piled one upon the other. 7

When the article is to be applied to the window the marginal portions are folded up perpendicularto the/base as shownin Fig. 4, for placing in the door frame of the car or other window frame space. The side wings being held in the position shown in Fig. 4 by the door frame, their inwardly deflected edges yielding-1y grip the edges of the glass in a manner that will be readily apparent.

If desired a thin flexible metal reinforcing sheet may be embodied in the rubber strip as indicated at 9 in Fig. 5. Such metal strips may be readily incorporated in the rubher by providing an extruding machine having a die head which enables the metal strip to be passed through the die opening and the rubber to be extruded around it, such machines being well known to those skilled in the art and needing no further description herein. Such strip if desired may be of reticulated metal.

This application is a division of coending application Serial No. 124,263, filed guly 28, 1926.

I claim:

l. A flexible window guide comprising a substantially flat strip of rubber enveloped in fabric and havin one face plane and the opposite face provi ed with a pair of parallel channels equidistant from the margins, the fabric extending down into said channels into engagement with the fabric on the opposite face to provide flexible fabric hinges, the strip being adapted to be readily folded into channel form about the flexible fabric hinges without stress on the rubber or unfolded and laid flat without stress on the rubber as desired.

2. A window channel stri. comprising an intermediate flat stri of ru ber, a substantially flat strip of rubber on each side thereof in the plane of said intermediate strip, a. fabric covering completely enveloping and united to said strips of rubber, the upper and lower layers of said fabric covering meeting between the strips to form flexible fabric hinges. r y

In testimony whereof, I aflix m signature.

RICHARD T. GRI FITHS. 

